Food Calorimetry Experiment Quiz

What is the first step of the experiment?

• Heating the food

• Set-up ring stand apparatus

• Measure 15 mL of water

• Record data

How will you ignite the food sample?

• Using a Bunsen burner

• With a match stick

• We will not ignite the food sample

• With water

Why is it important to record the mass of the food sample before and after burning?

• To calculate the amount of water evaporated

• To determine the efficiency of the heating setup

• To find out how much mass was lost during burning, indicating combustion efficiency

• To check the purity of the food sample

What is the role of the thermometer in the experiment described?

• To measure the boiling point of the food

• To stir the water in the test tube

• To measure the highest temperature of the water in the test tube

• To hold the food sample in place

What formula is used to calculate the calories given off by the food in a calorimetry experiment?

• q = mCΔT

• q = mΔT

• q = mC/T

• q = m/CT

What does the symbol 'C' represent in the formula used for calculating calories in food?

• Pressure coefficient

• Specific heat of water

• Heat capacity at constant pressure

• Specific heat of food

How are the calories calculated from the experiment converted for comparison?

• calories are converted to joules

• calories are converted to kilocalories

• Calories are converted to grams

• Calories are converted to kilograms

What is the final step in analyzing the calorimetry data according to the document?

• Calculate the total mass of the food sample

• Rank the food samples from highest to lowest based on kcal per gram

• Measure the initial temperature of the water

• Record the change in mass of the food sample

Why is it possible to calculate the heat given off by the food based on the change in temperature of the water?

• Because the water absorbs the heat from the food

• Because the temperature of the water decreases

• Because the food increases the water volume

• Because the water changes its chemical composition

Tags

NGSS.HS-PS3-4

What impact does conducting an experiment in an open system have on the results?

• It has no impact on the results

• It may lead to loss of energy to the surroundings

• It increases the accuracy of the results

• It changes the chemical properties of the food